On Red Hat Satellite 6.11 remove orphans task going to the paused state.

Issue

• Remove orphans task going to the paused state with error "Cannot delete some instances of model 'Repository' because they are referenced through protected foreign keys" on Red Hat Satellite 6.11.
• The task ' Actions::Katello::OrphanCleanup::RemoveOrphans ' is going to the paused state instead of finishing successfully.